<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <style>
        article {
            border: dashed 10px black;
            padding: 30px;
            background-color: rgba(255, 0, 0, 0.5);
            /* background-image: url(houdunren.jpg); */
            height: 500px;
            background-clip: border-box;
        }
    </style>
</head>

<body>
    <article>
        <h2>houdunren.com</h2>
    </article>
</body>

</html>